Welcome to the PB Forum oldcane. The amount of food the fish should get varies on their size and the number/size/weight of the fish per acre. Also varies on the water temp/time of year.

For our supplemental feeding with small stockers in spring (same amount of fish but smaller area) it runs about 2 lbs per day. In summer with the same fish (they are much bigger by then) about 3 lbs. per day. I usually set the feeder for the minimum 1 second setting for from 2 to 4 times per day. I use GFC also but for new little fish (2-3in. BG and FH) I use smaller sized food (starter food ) with higher protein %. The rates can be higher for ponds that are more like aquaculture operations.

You can estimate the amount needed for feeding to satiation based on fish weight and % of food weight per day required.